1-(3-(4-氨基苯基)-4,5-二氢-1H-吡唑-1-基)-2-(3,4-二甲氧基苯基)乙酮 、
对硝基苯基氯甲酸酯 以to give (4-{1-[2-(3,4-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-carbamic acid 4-nitro-phenyl ester (24)的产率得到(4-{1-[2-(3,4-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-carbamic acid 4-nitro-phenyl ester